Improvement in stench-valves for wash-basins



v AQLEVERTYQ Stenoh-Valve for Wash-Basins.

No. 203,745. Patented May 14, I878.

ItPETERS. PHOTO-LITHOGHAHER. WASHINGTON. D. O

UNITED STATES PATENT OFFICE.

ALEXANDER LEVERTY, BRIDGEPORT, CONNECTICUT.

IMPROV EMENT |N STENCH-VALVES FOR WASH-BASINS.

Specification forming part of Letters Patent N 0. 203,745, dated May 14,1878 application filed January 3, 1878.

To all whom it may concern:

Be it known that I, ALEXANDER LEVERTY, of Bridgeport, in the county ofFairficld and State of Connecticut, have invented a newImprovement instench-Valves for Wash-Basins and I do hereby declare the following,when taken in connection with the accompanying drawings and the lettersof reference marked thereon, to be a full, clear, and exact descriptionof the same, and which said drawing constitutes part of thisspecification, and represents a vertical central section of the devicein its application to a wash-basin.

This invention relates to a device to prevent the passage of gasesthrough the waste pipe of wash-basins. The ill efl'ects arising from thepassage of sewer-gases through the waste-pipe of wash-basins is too wellknown to require setting forth in this specification.

Owing to the fact that an overflow is a necessity in a Wash-basin, theplug in the bottom of the basin cannot prevent the passage of gases fromthe waste, because the gases will freely pass around and escape throughthe overflow.

The object of this invention is to combine, with a wash-basin, its wasteand overflow, a device which may be applied below the overflow, andclose the waste-pipe nights, or other considerable length of time whenthe basin is not required for use; and in such a combination theinvention consists, and as more fully hereinafter described.

A represents a common wash-basin, with the waste passage B through thebottom, closed with the usual plug a, and with an overflow, b, with itspipe C entering the waste passage above the trap D.

The trap itself is a great protection against the passage of sewer-gasesthrough the wastepipe, but is very far from completely accomplishing itsobject.

Into the waste-pipe, and below the passage from the overflow, a valve,6, is arranged, at

tached to a lever, E, which is hung on a fulcrum, f. The valve-seat ismade in a shell, having a passage, G, above it to the waste, and asecond passage, H, above it for the overflow, a passage, I, below it tothe trap, and also a bearing for the fulcrum or pivot of the lever E.The latterpacks, or so completely closes around the joint of the leveras to completely prevent the passage of the water therethrough.

To the outer end of the lever E a rod or other suitable connection, L,is made up through the top N to a knob or other convenient handle, P.

The handle P should be provided with a suitable clasp or catch or deviceto retain it in either position in which it may be placed.

Ordinarily the valve 6 is raised, as indicated in broken lines. In thatcondition the Washbasin may be used, and both the overflow and Wasteoperate in the usual manner; but for nights, or other times when thebasin is not required for use, the valve 0 is closed by simply raisingthe handle, and in that condition all possible escape of gases from thesewer to the basin is cut off.

It will be understood that any suitable means may be applied to thelever of the valve to operate it.

I do not broadly claim the arrangement of a stench-valve in theWaste-pipe of a washbasin below the overflow, as such I am aware is notnew.

I claim In combination with the waste and out flow passages of awash-basin, the shell constructed with connections G H for said twopassages, an outlet-passage, L, and a bearing for the lever E, the saidlever E, and valve 6, substantially as described.

ALEXANDER LEVERTY. Witnesses:

F. P. NORMAN, D. B. CLUTE.

